.logo{
    width: 270px;
    height: 129px;
    margin: 0 auto;
    margin-bottom: 20px;
}
.logo img{
    width: 270px;
    height: 129px;
}
.ipt{
    width: 658px;
    height: 44px;
    margin: 0 auto;
    display: flex;
    margin-bottom: 50px;
}
.ipt .inp{
    width: 550px;
    height: 38px;
    border: 2px solid #c4c7ce; 
    border-right: 0;
    border-radius:  10px 0 0 10px ;
    outline: none;
    padding-left: 10px;
}
#input:focus{
    border-color: #4e6ef2!important;
    opacity: 1;
}
.ipt button{
    width: 108px;
    height: 44px;
    border: 0;
    background-color: #4e6ef2;
    border-radius: 0 10px 10px 0;
    font-size: 17px;
    color: #fff;
    cursor:pointer;
}
.list-main{
    width: 654px;
    margin: 0 auto;
}
.list-main .list-hd{
    width: 100%;
    height: 24px;
    display: flex;
    justify-content: space-between;
    cursor:pointer;
}

.list-main .list-hd .sia{
    font-size: 16PX;
    color: black;
    text-decoration:none;
    font-weight: bold;
}
.list-bd {
    width: 100%;
    display: flex;
    flex: 1;
}
.list-bd .nav{
    width: 327px;
    cursor:pointer;
}